body,
html {
    margin: 0;
    padding: 0;
    font-family: "PingFang SC", "Microsoft Yahei", Helvetica, Arial, sans-serif;
}

.app {
    font-family: Arial, sans-serif;
    padding: 10px;
    width: 400px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

h1 {
    font-size: 16px;
    margin-bottom: 20px;
}

.pageinfo_div {
    width: 300px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
}

.pageinfo_div img {
    width: 20px;
    height: 20px;
    vertical-align: middle;
}

.pageinfo_div span {
    margin-left: 5px;
    font-size: 16px;
}

.input_name_div,
.input_url_div,
.categorySelect_div {
    width: 300px;
    margin-top: 20px;
}

.input_item {
    width: 300px;
    padding: 5px;
    margin-top: 10px;
    outline: none;
}

.select_ref {
    width: 315px;
    padding: 5px;
    margin-top: 10px;
    outline: none;
}

.sendBt {
    margin: 40px auto;
    height: 34px;
    width: 180px;
    padding: 8px 20px;
    border: none;
    border-radius: 20px;
    background: green;
    color: aliceblue;
    cursor: pointer;
}